Osteochondritis dissecans

This code represents osteochondritis dissecans, a condition characterized by the separation of a segment of cartilage and underlying bone from an articular surface. This typically occurs due to avascular necrosis, leading to a loose body within the joint or an unstable fragment.

Use this code when documentation clearly indicates a diagnosis of osteochondritis dissecans affecting any joint. This diagnosis is often supported by imaging studies such as X-rays, MRI, or CT scans, which show the characteristic lesion. It applies to both stable and unstable lesions.

• Specify the anatomical site with an additional code if available (e.g., 732.5 for knee).
• Distinguish from other osteochondropathies or avascular necrosis of bone, which have different codes.
• Ensure documentation differentiates between osteochondritis dissecans and traumatic intra-articular loose bodies.